<template>
  <view class="">
	<view class="search-box">
		<uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
	</view>
  <!-- 搜索建议列表 -->
  <view class="sugg-list" v-if="searchList.length !== 0">
    <view class="sugg-item" v-for="(item,index) in searchList" :key="index" @click="searchClick(item)">
      <view class="goods-name">{{item.goods_name}}</view>
      <uni-icons type="arrowright" size="16"></uni-icons>
    </view>
  </view>
  <!-- 搜索历史列表 -->
  <view class="history-box" v-else>
    <!-- 标题区域 -->
    <view class="history-title">
      <text>搜素历史</text>
      <uni-icons type="trash" size="17" @click="clean"></uni-icons>
    </view>
    <!-- 列表区域 -->
    <view class="history-list">
      <uni-tag :text="item" v-for="(item,index) in historyLists" :key="index" @click="changeClick(item)"></uni-tag>
    </view>
  </view>
   </view>
</template>

<script>
	export default {
  
		data() {
			return {
				time:null,
        kw:'',
        searchList:[],
        historyList:[]
			};
		},
    onLoad(){
      this.historyList = JSON.parse(uni.getStorageSync('kw') || '[]')
    },
    methods:{
      input(e){
        clearTimeout(this.timer)
        this.timer = setTimeout(() => {
          this.kw = e.value
          this.onloadSerach()
        },500)
      },
     async onloadSerach(){
        if(this.kw.length === 0){
          this.searchList = []
          return
        }
        const {data:res} = await  uni.$http.get('/api/public/v1/goods/qsearch',{query:this.kw})
        if(res.meta.status !== 200) return uni.$showMsg()
        this.searchList = res.message
        this.searchIndex()
      },
      searchClick(item) {
        uni.navigateTo({
          url:'/subpkg/goods_detrail/goods_detrail?goods_id=' + item.goods_id
        })
      },
      searchIndex(){
       const set = new Set(this.historyList)
       // 2. 调用 Set 对象的 delete 方法，移除对应的元素
       set.delete(this.kw)
       // 3. 调用 Set 对象的 add 方法，向 Set 中添加元素
       set.add(this.kw)
       // 4. 将 Set 对象转化为 Array 数组
       this.historyList = Array.from(set)
       // 将数据保存在本地
       uni.setStorageSync('kw',JSON.stringify(this.historyList))
      },
      changeClick(item){
        uni.navigateTo({
          url:'/subpkg/goods_list/goods_list?query=' + item
        })
      },
      clean(){
       this.historyList = []
       uni.setStorageSync('kw','')
      }
    },
    computed:{
      historyLists(){
        return [...this.historyList].reverse()
      }
    }
	}
</script>

<style lang="scss">
.uni-searchbar {
  background-color: #C00000 !important;
}
.search-box {
  position: sticky;
  top: 0;
  z-index: 999;
  }
  .sugg-list {
    padding: 0 5px;
    .sugg-item {
      font-size: 12px;
      padding: 13px 0;
      border-bottom: 1px solid #efefef;
      display: flex;
      align-items: center;
      justify-content: space-between;
      .goods-name {
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        margin-right: 3px;
      }
    }
  }
  .history-box {
    padding: 0 5px;
  
    .history-title {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 40px;
      font-size: 13px;
      border-bottom: 1px solid #efefef;
    }
  
    .history-list {
      display: flex;
      flex-wrap: wrap;
  
      .uni-tag {
        margin-top: 5px;
        margin-right: 5px;
      }
    }
  }
</style>
